Keystones — Lintel
Five GCSE retrieval questions · 12 March 2026 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 126. What are the numbers?
Answer: 41, 42, and 43 -
2. Algebra
Expand: 2(6x + 7)
Answer: 12x + 14 -
3. Geometry
Adjacent = 18cm, hypotenuse = 38cm. Find the angle
Answer: 61.7° -
4. Ratio
Find 58% of 369
Answer: 214.02 -
5. Statistics
A bag has 6 red and 8 blue balls. What is the probability of picking a red ball?
Answer: 3⁄7